Answer:
Question 2: 4th answer, Question 3: 3rd answer
Step-by-step explanation:
I think that is correct hope it helps!
Basically, you are asked to find the equation for total revenue. In economics, total revenue is equal to the the quantity multiplied with price.
Total Revenue = Price*Quantity
Thus,
R(x) = P(x) * N(x)
R(x) = (0.6x + 5)(<span>−0.2x</span>³<span> + x</span>²<span> − 2x + 9)
R(x) = -0.12x</span>⁴ + 0.6x³ - 0.12x² + 5.4x - x³ + 5x² - 10x + 45
<em>R(x) = -0.12x⁴ - 0.4x³ + 4.88x² - 4.6x + 45</em>
Answer:
Thats not a full question.
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
5 scored in the 80's and 0 scored in the 90's
anything less than 80 would not be counted
